Essential Chemistry for IGCSE - Making And Identifying Salts (Section 3 - No. 5)
In the flame test for metal ions, the color of the flame is due to...
The metal turning into a different compound
The emission of light as electrons return to their ground state
The production of an unstable gas
The presence of impurities in the metal
Explanation
The color of the flame is due to the emission of light caused by electrons losing energy.
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